i have just taken in a new bike which has a romic unit fitted to it. have looked at romics site it seems pretty self explanatory but a few questions to those who might know.-on my unit the rebound adjuster seems to unscrew and keep unscrewing but will tighten up if turned in clockwise direction.-the person i bought the frame from used a 700lb spring, i think this is oversprung, because he weighed the same as me and i ride 400lb spring on my orange patriot-does the fact that the new frame( an ellsworth Id, horst link) has a different linkage affect the spring weight?-who services romics in the u.k?- if the advice is to change spring weights then does anybody have a spring they woulf like to swap?thanks